<html>
<head>
<script>

function boom()
{
  var frame = document.createElementNS("http://www.w3.org/1999/xhtml", "iframe");

  document.documentElement.appendChild(frame);
  var framedoc = frame.contentDocument;
  document.documentElement.removeChild(frame);

  framedoc.removeChild(framedoc.documentElement);
  framedoc.appendChild(frame);

  try { frame.appendChild(undefined); } catch(e) { }

  document.removeChild(document.documentElement);
  document.appendChild(frame);
}

</script>
</head>

<body onload="boom();"></body>
</html>
